MESON Chess Problem Database
Problem Display
PID: 62028 (8/6Q1/8/B7/3K4/3B4/2ppp3/3kN2R w - - 0 1)
Bowell, Gerald P
Chess, 1943
#2
6 + 4
SOLUTION
- SOUND
- Sets
- 1...c1S
- 2.Bc2#
- 1...c1B
- 2.Bc2#
- 1...dxe1Q
- 2.Rxe1#
- 1...dxe1S
- 2.Rxe1#
- 1...dxe1B
- 2.Rxe1#
- 1...dxe1R
- 2.Rxe1#
- 1...c1S
- Tries
- 1.Bxe2+?
- 1...Kc1
- 2.Sd3#
- 1...Kxe2!
- 1...Kc1
- 1.Qe5?
- 1...dxe1Q
- 2.Rxe1#
- 1...dxe1S
- 2.Rxe1#
- 1...dxe1B
- 2.Rxe1#
- 1...dxe1R
- 2.Rxe1#
- 1...c1Q
- 2.Bxe2#
- 2.Qxe2#
- 1...c1S
- 2.Bc2#
- 1...c1B
- 2.Bc2#
- 2.Bxe2#
- 2.Qxe2#
- 1...c1R
- 2.Bxe2#
- 2.Qxe2#
- 1...Kc1!
- 1...dxe1Q
- 1.Qg2?
- 1...dxe1Q
- 2.Rxe1#
- 1...dxe1S
- 2.Rxe1#
- 1...dxe1B
- 2.Rxe1#
- 1...dxe1R
- 2.Rxe1#
- 1...c1Q
- 2.Bxe2#
- 2.Qxe2#
- 1...c1S
- 2.Bc2#
- 1...c1B
- 2.Bc2#
- 2.Bxe2#
- 2.Qxe2#
- 1...c1R
- 2.Bxe2#
- 2.Qxe2#
- 1...Kc1!
- 1...dxe1Q
- 1.Qg4?
- threat
- 2.Sxc2#
- 2.Sg2#
- 1...dxe1Q
- 2.Rxe1#
- 1...dxe1S
- 2.Rxe1#
- 1...dxe1B
- 2.Rxe1#
- 1...dxe1R
- 2.Rxe1#
- 1...c1Q
- 2.Sc2#
- 2.Sg2#
- 2.Bxe2#
- 2.Qxe2#
- 1...c1S
- 2.Sc2#
- 2.Sg2#
- 2.Bc2#
- 1...c1B
- 2.Sc2#
- 2.Sg2#
- 2.Bc2#
- 2.Bxe2#
- 2.Qxe2#
- 1...c1R
- 2.Sc2#
- 2.Sg2#
- 2.Bxe2#
- 2.Qxe2#
- 1...Kc1!
- threat
- 1.Qe7?
- 1...dxe1Q
- 2.Rxe1#
- 1...dxe1S
- 2.Rxe1#
- 1...dxe1B
- 2.Rxe1#
- 1...dxe1R
- 2.Rxe1#
- 1...c1Q
- 2.Bxe2#
- 2.Qxe2#
- 1...c1S
- 2.Bc2#
- 1...c1B
- 2.Bc2#
- 2.Bxe2#
- 2.Qxe2#
- 1...c1R
- 2.Bxe2#
- 2.Qxe2#
- 1...Kc1!
- 1...dxe1Q
- 1.Bxe2+?
- Keys
- 1.Ke3!
- 1...Kc1
- 2.Qa1#
- 1...dxe1Q
- 2.Rxe1#
- 1...dxe1S
- 2.Rxe1#
- 1...dxe1B
- 2.Rxe1#
- 1...dxe1R
- 2.Rxe1#
- 1...c1Q
- 2.Bxe2#
- 1...c1S
- 2.Bc2#
- 1...c1B
- 2.Bc2#
- 2.Bxe2#
- 1...c1R
- 2.Bxe2#
- 1...Kc1
- 1.Ke3!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 1
- Sets
- P(b);SBLOCK::B(C)
- P(c);OGATE,P_SPINQ(c),XS(A)::R1(B),XQ(c)
- P(c);OGATE,P_SPINS(c),XS(A)::R1(B),XS(c)
- P(c);OGATE,P_SPINB(c),XS(A)::R1(B),XB(c)
- P(c);OGATE,P_SPINR(c),XS(A)::R1(B),XR(c)
- Tries
- Try
- B(C);CHECK,XP(d)
- Vars
- K(a);P-FLIGHT::R(B)+S(A),DCHECK
- Refutation
- K(a);S_FLIGHT,XB(C)
- Try
- Q(F);
- Vars
- P(c);OGATE,P_SPINQ(c),XS(A)::R1(B),XQ(c)
- P(c);OGATE,P_SPINS(c),XS(A)::R1(B),XS(c)
- P(c);OGATE,P_SPINB(c),XS(A)::R1(B),XB(c)
- P(c);OGATE,P_SPINR(c),XS(A)::R1(B),XR(c)
- P(b);SBLOCK::B(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(F);
- Vars
- P(c);OGATE,P_SPINQ(c),XS(A)::R1(B),XQ(c)
- P(c);OGATE,P_SPINS(c),XS(A)::R1(B),XS(c)
- P(c);OGATE,P_SPINB(c),XS(A)::R1(B),XB(c)
- P(c);OGATE,P_SPINR(c),XS(A)::R1(B),XR(c)
- P(b);SBLOCK::B(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Q(F);P_PINP(d)
- Threat
- DUALS(2)
- Vars
- P(c);OGATE,P_SPINQ(c),XS(A)::R1(B),XQ(c)
- P(c);OGATE,P_SPINS(c),XS(A)::R1(B),XS(c)
- P(c);OGATE,P_SPINB(c),XS(A)::R1(B),XB(c)
- P(c);OGATE,P_SPINR(c),XS(A)::R1(B),XR(c)
- Refutation
- K(a);N_SPINP(d),P-FLIGHT
- Try
- Q(F);
- Vars
- P(c);OGATE,P_SPINQ(c),XS(A)::R1(B),XQ(c)
- P(c);OGATE,P_SPINS(c),XS(A)::R1(B),XS(c)
- P(c);OGATE,P_SPINB(c),XS(A)::R1(B),XB(c)
- P(c);OGATE,P_SPINR(c),XS(A)::R1(B),XR(c)
- P(b);SBLOCK::B(C)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- K(D);S_FLIGHT
- Vars
- K(a);P-FLIGHT::QAR2(F)
- P(c);OGATE,P_SPINQ(c),XS(A)::R1(B),XQ(c)
- P(c);OGATE,P_SPINS(c),XS(A)::R1(B),XS(c)
- P(c);OGATE,P_SPINB(c),XS(A)::R1(B),XB(c)
- P(c);OGATE,P_SPINR(c),XS(A)::R1(B),XR(c)
- P(b);SBLOCK::B(C),XP(d)
- P(b);SBLOCK::B(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).